<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=iso-8859-1"> <META content="MSHTML 6.00.2900.3132" name=GENERATOR> <STYLE>@font-face { font-family: Tahoma; } @page Section1 {size: 8.5in 11.0in; margin: 1.0in 1.25in 1.0in 1.25in; } P.MsoNormal { FONT-SIZE: 12pt; MARGIN: 0in 0in 0pt; FONT-FAMILY: "Times New Roman" } LI.MsoNormal { FONT-SIZE: 12pt; MARGIN: 0in 0in 0pt; FONT-FAMILY: "Times New Roman" } DIV.MsoNormal { FONT-SIZE: 12pt; MARGIN: 0in 0in 0pt; FONT-FAMILY: "Times New Roman" } A:link { COLOR: blue; TEXT-DECORATION: underline } SPAN.MsoHyperlink { COLOR: blue; TEXT-DECORATION: underline } A:visited { COLOR: purple; TEXT-DECORATION: underline } SPAN.MsoHyperlinkFollowed { COLOR: purple; TEXT-DECORATION: underline } P { FONT-SIZE: 12pt; MARGIN-LEFT: 0in; MARGIN-RIGHT: 0in; FONT-FAMILY: "Times New Roman" } SPAN.emailstyle17 { COLOR: navy; FONT-FAMILY: Arial } SPAN.EmailStyle19 { COLOR: navy; FONT-FAMILY: Arial } DIV.Section1 { page: Section1 } </STYLE> </HEAD> <BODY lang=EN-US vLink=purple link=blue bgColor=white> <DIV><FONT face=Arial>Working again with note #40, I moved the knuckle way out to 18 mm and then back to 17 mm. I moved the wippen rail out 1.5 mm for an action spread of 115 mm - that made the jack/knuckle-core alignment very good. I was able to remove more lead from the key. Here's what I have now:</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV> <DIV><FONT face=Arial>Action Ratio:  5.7</FONT></DIV> <DIV><FONT face=Arial>FW: 16.1g  (0.54 of Stanwood's maximum FW of 30.0g for note #40)</FONT></DIV> <DIV><FONT face=Arial>KR: 5.2</FONT></DIV> <DIV><FONT face=Arial>DW: 50g</FONT></DIV> <DIV><FONT face=Arial>UW: 32g</FONT></DIV> <DIV><FONT face=Arial>BW: 41g</FONT></DIV> <DIV><FONT face=Arial>SW: 9.1g</FONT></DIV> <DIV><FONT face=Arial>F: 9.0g</FONT></DIV> <DIV><FONT face=Arial>Knuckle-Core distance:  17 mm</FONT></DIV> <DIV><FONT face=Arial>Action Spread:  115 mm</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>It appears all will regulate very nicely.</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>I didn't measure blow and dip accurately at the time of this post.</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>Couple questions though. Action ratio is in the "normal" ballpark, although perhaps not optimal for this action? </FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>FW is way low for key #40, however, I have something in the range of a "good" amount of lead - see picture below:</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><IMG alt="" hspace=0 src="cid:00af01c7c07b$58d6c8d0$0302a8c0@DESKTOP" align=baseline border=0></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>DW<FONT size=3> is nice - right where one would want it. UW is high - but is that bad? Does the key ever return too fast for a pianist? But why is it so high? I know that you don't get something for no price. Doesn't that suggest that the action is suffering somewhere else?</FONT></FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>BW is high. So? As another person asked: What does BW mean to or do to a pianist? What does it matter? What does it mean (I know the definition) from a practical standpoint? David Love - what makes you say that you like a 37g BW - is it because 37g BW "feels good" to you - or that you can't "feel" BW, but rather when you have a BW of 37 the other parameters usually are near their optimum?</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>SW is right where David Love suggested - I extrapolated by simply following the Stanwood Smart Chart curve from his SW recommendations on notes #20 and #1. A 9.1g SW is just a hair below the exact middle of Stanwood's SW curves - so this is a medium SW.</FONT></DIV></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>It seems to me I am getting closer to where I want to be. Good leading (key inertia), hammer weight and Down Weight. Seem like the only thing concerning me is my high Up Weight and Balance Weight. Are these a real concern? Why/how would the action perform better if I were able to get BW down to 37g (or there abouts) and reduce UW to 25g or so - all, or course, without changing  leading, SW and DW? Seems to me the only way to potentially do that would be changing the action ratio - but how - capstan, wip rail, knuckle? </FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>And I still have the nagging question about key lead on this action: Why do I have such a very low FW, yet a "normal" amount of lead? This also has me scratching my head and worrying that something is horribly amiss elsewhere - again, the little bit I think I know about action balancing is that everything is a compromise - you don't get anything for free - the only way to pay Peter is to take from Paul.</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>Man, when does it end?    <FONT size=5>:-0</FONT></FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>Thanks for all the input.</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>Terry Farrell</FONT></DIV> <BLOCKQUOTE dir=ltr style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV><FONT face=Arial size=2></FONT><BR></DIV> <DIV class=Section1> <P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I meant a 9 gram hammer weight.  Strike weight would be plus the shank.  At note 1 I am generally in the 9 – 9.5 grams hammer weight.  Add 1.8 grams to get the strike weight on average with a Renner shank.  Your 10 gram hammer producing a 11.9 </SPAN></FONT><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">SW</SPAN></FONT><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"> at note 16 is easily a full gram higher than I would normally go. </SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT> </P> <P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">SNIP</SPAN></FONT><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">   </SPAN></FONT></P> <P class=MsoNormal><FONT face="Times New Roman" color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy"></SPAN></FONT> </P> <P class=MsoNormal><FONT face="Times New Roman" color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy">David Love</SPAN></FONT></P> <P class=MsoNormal><FONT face="Times New Roman" color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy"></SPAN></FONT> </P> <P class=MsoNormal><FONT face="Times New Roman" color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy"></SPAN></FONT> </P><FONT face="Times New Roman" color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy"> <DIV><FONT face=Arial size=2>Original Action Parameters:</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial size=2>Action Ratio:  5.67</FONT></DIV> <DIV><FONT face=Arial size=2>FW: 36.25 (0.966 of Stanwood's maximum FWs)</FONT></DIV> <DIV><FONT face=Arial size=2>KR: 5.1</FONT></DIV> <DIV><FONT face=Arial size=2>DW: 50g</FONT></DIV> <DIV><FONT face=Arial size=2>UW: 27g</FONT></DIV> <DIV><FONT face=Arial size=2>BW: 38.5g</FONT></DIV> <DIV><FONT face=Arial size=2>F: 11.5g</FONT></DIV> <DIV><FONT face=Arial>SW: 11.9g</FONT></DIV> <DIV><FONT face=Arial size=2>Blow: 48mm (1-7/8")</FONT></DIV> <DIV><FONT face=Arial size=2>Dip: 9.85mm (0.39")</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV></SPAN></FONT></DIV></BLOCKQUOTE></BODY></HTML>